PHP: How to put a variable in an array?
arrays, php, variables, wordpress
Solution
$args['post__in'] = array_merge($args['post__in'], explode(',', $tabs));
Let's explain what I did so you may pick up a thing or two:
- `explode(',', $tabs)` splits a string into pieces at a separator and puts that pieces in an array.
- `array_merge($arr1, $arr2)` will merge the two arrays.
- `$args['post__in']` will access an array element specified by a key.
Note that array_merge, in this case, will just append the values and you may end up with duplicate numbers. To get rid of duplicates just wrap the merge in `array_unique`. Like so:
$args['post__in'] = array_unique(array_merge($args['post__in'], explode(',', $tabs)));
And of course, the trivial case when you just want to replace those numbers with brand new ones is
$args['post__in'] = explode(`,`, $tabs);
Problem
Just a quick newbie PHP syntax question. I have a variable, let's call it `$tabs` which always contains a string of numbers separated by commas, like so: `24,35,43,21` I also have a variable that's an array: ``` $args = array('post_type' => 'page', 'post__in' => array(27,19,29), 'order' => 'ASC'); ``` That's of course WordPress. What I need to do, is place the content of the `$tabs` variable (numbers) where the numbers inside the array are. I'm rather new to PHP, only understand how to modify some things, but this I can't figure out, no idea how the syntax for it should go. Anyone able to help? Thanks.